1. (1) Perc-contaminated wastewater that is discharged to a sewer system must be treated prior to discharge by physical separation (water separator) and double carbon filtration, or an equivalent control which has been approved by the department, to achieve an effluent quality that:

   1. (i) is less than or equal to 20 ppb perc without perc evaporation; and
   2. (ii) conforms to appropriate local sewer use ordinances.

2. (2) All perc-contaminated wastewater discharges to surface and ground waters must conform to the requirements of Part 750 of this Title.

   (b) Evaporation of perc-contaminated wastewater.

   Perc-contaminated wastewater that is evaporated must be treated by physical separation (water separator) and double carbon filtration and not exceed a 20 ppb perc effluent standard prior to evaporation.

Perc-contaminated wastewater generated by facilities subject to this Subpart must be managed as follows:

(a) Perc-contaminated wastewater discharges.